Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 457-0016-001 found under Chopper Electronic by Boeing Company The. The National Stock Number assigned to this part is 5945002255453, and the Federal Supply Class is 5945 Relays And Solenoids. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 457-0016-001.